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A kind of sampling device of portable mass spectrometer and portable mass spectrometer

A technology of sampling device and mass spectrometer, which is applied in the field of pollutant detection, can solve the problems of immature simple enrichment device, etc., and achieve the effect of improving sensitivity and flexible and convenient operation process

Active Publication Date: 2021-04-13
BEIJING SDL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently, simple enrichment devices for portable mass spectrometers are not yet mature

Method used

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  • A kind of sampling device of portable mass spectrometer and portable mass spectrometer
  • A kind of sampling device of portable mass spectrometer and portable mass spectrometer
  • A kind of sampling device of portable mass spectrometer and portable mass spectrometer

Examples

Experimental program
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Effect test

Embodiment

[0037] combine Figure 1 to Figure 5 The sampling device for a portable mass spectrometer provided in this embodiment includes a first module A1 , a second module A2 , a membrane module (consisting of a membrane holder 311 and a membrane 312 ), and a sealing gasket 32 ​​.

[0038] Depend on Figure 4 and figure 2 As shown, the first module A1 is provided with a first groove 41 , a sample inlet 22 and a screw hole 43 . Preferably, the first module A1 is flat.

[0039] Wherein, the sample inlet 22 is a small through hole, and the component to be measured in the sample to be tested enters the vacuum cavity of the portable mass spectrometer through the sample inlet 22 . Moreover, the sample inlet 22 is located within the range covered by the first groove 41 .

[0040] like image 3 and Figure 4 As shown, the first groove 41 includes an outer ring and an inner ring. Wherein, the diameter of the outer ring of the first groove 41 is greater than the diameter of the inner rin...

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Abstract

The invention relates to a sample feeding device of a portable mass spectrometer and the portable mass spectrometer. The sampling device includes a first module, a second module, a membrane module, and a sealing gasket; the first module is provided with a first groove, a sample inlet and a screw hole, and the sample inlet is located in the range covered by the first groove ; The second module is provided with a second groove, a sampling inlet and a through hole, the sampling inlet communicates with the second groove, and the screw hole and the through hole are located at corresponding positions; the membrane module includes a membrane bracket and a membrane, and the membrane bracket One or more through holes are provided on the surface of the two opposite ends, one of the two opposite ends is inserted into the first groove, and is clamped with the first groove, and a film is installed on the other end; the film module is equipped with One end of the membrane is loaded into the second groove, and the sealing gasket is located between the membrane module and the second groove. The detection sensitivity can be significantly improved by injecting samples into the portable mass spectrometer through the sample injection device, and the operation process is simple and convenient.

Description

technical field [0001] The invention relates to the field of pollutant detection, in particular to a sampling device of a portable mass spectrometer and a portable mass spectrometer containing the sampling device. Background technique [0002] In today's society, the development of science and technology has greatly improved the quality of human life. At the same time, the environmental pollution caused by the development of science and technology cannot be ignored. Especially in heavy industrial cities, the construction of ecological environment has become a hot topic. Among them, the acquisition of on-site real-time monitoring data can provide strong evidence for the process of environmental law enforcement. [0003] In the process of air pollution monitoring, mass spectrometer is a relatively commonly used instrument. As a gas component and concentration analysis instrument, mass spectrometer has the advantages of high sensitivity and high specificity, and is widely use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/20G01N30/72
Inventor 敖小强薛振华胡丹
Owner BEIJING SDL TECH
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